1834 - Thomas Davenport of Vermont developed the first real electric motor ('real' meaning powerful enough to do a task) although Joseph Henry and Michael Faraday created early motion devices using electromagnetic fields.
Below is a more detailed usage of operating systems according to age group: 18 to 34 years old. Of all the smartphone users, 50% use Android as operating system, 43% use iPhone, 39% use Microsoft and 38% use RIM. Apparently, more users prefer Android.
According to the latest stats from NetMarketShare, Windows 7 currently has a 61 per cent share of the global operating system market, Windows 8.1 accounts for 13 per cent and Windows 8 for three per cent. Windows XP, which launched in 2001 and is no longer supported by Microsoft, still accounts for almost 12 per cent.